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27140 (1998 XW49)
Classification: Main-belt Asteroid          SPK-ID: 2027140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08489762719689087 4.3866e-08  
a 2.80106304144964 1.5772e-08 au
q 2.56325943560166 1.2051e-07 au
i 9.030781991559182 4.7782e-06 deg
node 4.744031107557764 2.9106e-05 deg
peri 157.2531548052971 3.9453e-05 deg
M 151.9942270593111 2.6624e-05 deg
tp 2458277.551527914590
(2018-Jun-08.05152791)
0.00012614 TDB
period 1712.311414624903
4.69
1.4463e-05
3.96e-08
d
yr
n .2102421305641189 1.7758e-09 deg/d
Q 3.038866647297621 1.7111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1770  
   data-arc span      7942 days (21.74 yr)  
   first obs. used      1997-10-30  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47751  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:45:06  

Additional Information
 Earth MOID = 1.57292 au 
 Jupiter MOID = 1.93367 au 
 T_jup = 3.302 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO439289  
diameter diameter 5.669 km 0.292 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.263   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27140 (1998 XW49)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XW49 = 1999 BH17 = 2000 JR24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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